subcontraries
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Subcontraries — Subcontrary Sub*con tra*ry, n.; pl. {Subcontraries}. (Logic) A subcontrary proposition; a proposition inferior or contrary in a lower degree. [1913 Webster] … The Collaborative International Dictionary of English
Square of opposition — In the system of Aristotelian logic , the square of opposition is a diagram representing the different ways in which each of the four propositions of the system are logically related ( opposed ) to each of the others. The system is also useful in … Wikipedia
logic, history of — Introduction the history of the discipline from its origins among the ancient Greeks to the present time. Origins of logic in the West Precursors of ancient logic There was a medieval tradition according to which the Greek philosopher … Universalium
Subcontrary — Sub*con tra*ry, n.; pl. {Subcontraries}. (Logic) A subcontrary proposition; a proposition inferior or contrary in a lower degree. [1913 Webster] … The Collaborative International Dictionary of English
square of opposition — Date: 1864 a square figure on which may be demonstrated the logical relationships of contraries, contradictories, subcontraries, and subalterns and superalterns … New Collegiate Dictionary
Opposite (semantics) — In lexical semantics, opposites are words that lie in an inherently incompatible binary relationship as in the opposite pairs male : female, long : short, up : down, and precede : follow. The notion of incompatibility here… … Wikipedia
4 (number) — Four redirects here. For other uses, see 4 (disambiguation). 4 −1 0 1 2 3 4 5 6 7 8 9 → List of numbers Integers … Wikipedia
List of philosophy topics (R-Z) — RRaRabad Rabbinic law Rabbinic theology Francois Rabelais François Rabelais race racetrack paradox racism Gustav Radbruch Janet Radcliffe Richards Sarvepalli Radhakrishnan radical Aristotelianism radical behaviourism radical feminism radical… … Wikipedia
subcontrary — /sub kon trer ee/, n., pl. subcontraries. Logic. one of two propositions that can both be true but cannot both be false. [1595 1605; < ML subcontrarius, LL (see SUB , CONTRARY), orig. as trans. of Gk hypenantíos] * * * … Universalium
square of opposition — In traditional logic the square of opposition summarizes the logical relationships between the four forms of subject predicate proposition known as A, E, I, O: All X are Y; no X are Y; some X are Y; some X are not Y. In the diagram,… … Philosophy dictionary
